CN106710703A - Multifunctional cable - Google Patents
Multifunctional cable Download PDFInfo
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- CN106710703A CN106710703A CN201611236025.7A CN201611236025A CN106710703A CN 106710703 A CN106710703 A CN 106710703A CN 201611236025 A CN201611236025 A CN 201611236025A CN 106710703 A CN106710703 A CN 106710703A
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- 239000013307 optical fiber Substances 0.000 claims abstract description 101
- 230000003287 optical effect Effects 0.000 claims abstract description 73
- 238000006243 chemical reaction Methods 0.000 claims abstract description 30
- 238000004891 communication Methods 0.000 claims abstract description 13
- 238000001514 detection method Methods 0.000 claims abstract description 10
- 238000005070 sampling Methods 0.000 claims description 18
- 239000000945 filler Substances 0.000 claims description 15
- 230000001681 protective effect Effects 0.000 claims description 12
- 239000000835 fiber Substances 0.000 claims description 10
- 229910052751 metal Inorganic materials 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 10
- 239000004065 semiconductor Substances 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 239000004745 nonwoven fabric Substances 0.000 claims description 5
- 238000001069 Raman spectroscopy Methods 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims 1
- 230000003321 amplification Effects 0.000 claims 1
- 238000004132 cross linking Methods 0.000 claims 1
- 238000003199 nucleic acid amplification method Methods 0.000 claims 1
- 230000005693 optoelectronics Effects 0.000 claims 1
- 238000009529 body temperature measurement Methods 0.000 abstract description 8
- 239000000463 material Substances 0.000 description 7
- 229920003020 cross-linked polyethylene Polymers 0.000 description 4
- 239000004703 cross-linked polyethylene Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 210000001367 artery Anatomy 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/005—Power cables including optical transmission elements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
- G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
- G01D5/353—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre
- G01D5/35338—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre using other arrangements than interferometer arrangements
- G01D5/35354—Sensor working in reflection
- G01D5/35358—Sensor working in reflection using backscattering to detect the measured quantity
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
- G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
- G01D5/353—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre
- G01D5/35338—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre using other arrangements than interferometer arrangements
- G01D5/35354—Sensor working in reflection
- G01D5/35358—Sensor working in reflection using backscattering to detect the measured quantity
- G01D5/35364—Sensor working in reflection using backscattering to detect the measured quantity using inelastic backscattering to detect the measured quantity, e.g. using Brillouin or Raman backscattering
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
- G01K11/32—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in transmittance, scattering or luminescence in optical fibres
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
- G01K11/32—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in transmittance, scattering or luminescence in optical fibres
- G01K11/322—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in transmittance, scattering or luminescence in optical fibres using Brillouin scattering
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/24—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet
- G01L1/242—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet the material being an optical fibre
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/32—Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks
- H01B7/324—Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks comprising temperature sensing means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/32—Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks
- H01B7/328—Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks comprising violation sensing means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The invention relates to the technical field of cables, and particularly relates to a multifunctional cable comprising a three-core power cable. The multifunctional cable also comprises a first optical fiber, a second optical fiber, a third optical fiber and a photoelectric conversion device. The first optical fiber, the second optical fiber and the third optical fiber are arranged in the three-core power cable. The photoelectric conversion device is connected with the first and second optical fibers. The photoelectric conversion device comprises an optical module and an electrical module. The optical module is connected with the first optical fiber and the second optical fiber and used for transmitting optical signals and receiving the preset scattered light signals. The electrical module is connected with the optical module and used for converting the scattered light signals into electrical signals and realizing storage and alarm. The photoelectric conversion device is installed at the starting section of the three-core power cable. According to the multifunctional cable, the temperature measurement, stress detection and conventional communication functions of each point of the three-core power cable can be realized, the external interference can be eliminated by the built-in optical fibers and the service life of the optical fibers can also be enhanced. The implementation basis is provided for power cable fault detection, current carrying capacity control, antitheft alarm and electric power communication.
Description
Technical field
The invention belongs to field of cable technology, more particularly to a kind of multi-functional cable.
Background technology
At present, Cable fault examination is mainly temperature detection and burglar alarm.Widely used skill in temperature detection
Art has thermocouple temperature measurement and optical fiber temperature-measurement.The principle of thermocouple temperature measurement is that the resistance of thermocouple can become with the change of temperature
Change, the signal of temperature is converted to by electric signal with this, and measure.Thermocouple temperature measurement simple structure, cheap, technology into
It is ripe, but because thermocouple can only carry out point type thermometric, it is impossible to enter the on-line monitoring of trip temperature to whole piece cable run, so having
Certain limitation.Optical fiber have it is with low cost, by electromagnetic interference, small in volume, certainty of measurement is high, be easy to lay
Advantage, distributed optical fiber temperature measurement technology achieves that the circuit of logarithm kilometer carries out long term monitoring using an optical fiber, at this stage
Laboratory stage being rested on optical fiber temperature-measurement cable, practical application is less more.Existing optical fiber temperature-measurement cable mainly connects to cable
Detected at head, and by fibre optic installations in Exterior cable.It is primarily present problems with：
（1）Temperature of Power Cables raises main stand under load flow effect, and current-carrying capacity is raised can cause cable many places temperature to raise, only right
Cable connector part carries out thermometric and there is potential safety hazard；
（2）Power cable layer environment is complicated, and fibre optic installations easily cause to damage in Exterior cable to optical fiber physical arrangement；
（3）There is a plurality of cable power cable layer groove, fibre optic installations can be subject to other cables in Exterior cable measured temperature more
Temperature rise influences；
（4）Power cable is bent, then certainty of measurement can be caused to decline；
（5）Thermometric, burglar alarm, the function of communication can not simultaneously be realized.
The content of the invention
External interference is excluded using built-in fiber it is an object of the invention to provide one kind, while improving the use longevity of optical fiber
Life, and the temperature of three core power cable each points can be determined, carry out the multi-functional cable of stress detection and general communication.
To achieve the above object, the technical solution adopted by the present invention is：A kind of multi-functional cable, including three core electric power electricity
Cable, also including the first optical fiber, the second optical fiber, the 3rd optical fiber and photoelectric conversion device；First optical fiber, the second optical fiber, the 3rd optical fiber
It is placed in inside three core power cables, photoelectric conversion device is connected with first, second optical fiber.
In above-mentioned multi-functional cable, photoelectric conversion device includes optical module and electric module, optical module and the first optical fiber,
Second optical fiber is connected, and for launching optical signal and receiving the scattered light signal of setting, electric module is connected with optical module, for will be scattered
Optical signal is penetrated to be converted into electric signal and realize storage with alarm；Photoelectric conversion device is installed on the initial segment of three core power cables.
In above-mentioned multi-functional cable, optical module includes the laser, the photo-coupler that are sequentially connected, and photo-coupler
First optical filter of upper connection, the second optical filter；First optical filter is connected with the first optical fiber, the second optical fiber, the second light
Wave filter is connected with electric module；Laser launches pulsed light, and photo-coupler realizes branch and the combining of light, the filtering of first and second light
The incident light and scattering light of device selection respective settings wavelength.
In above-mentioned multi-functional cable, first and second optical filter is set using Raman scattering with Brillouin scattering, is used for
Filter out Stokes ratio signal, anti-Stokes scattering optical signal and Brillouin scattering optical signal.
In above-mentioned multi-functional cable, electric module includes：First photoelectric detector is sequentially connected the first amplifier, first
A/D sampling modules and the first SRAM module, the second photoelectric detector be sequentially connected the second amplifier, the 2nd A/D sampling modules and
Second SRAM module, the 3rd photoelectric detector is sequentially connected the 3rd amplifier, the 3rd A/D sampling modules, comparison module and alarm
Device；First, second and third photoelectric detector is connected with the second optical filter；First, second photoelectric detector is used to detect Stokes
Scattered light signal and anti-Stokes scattering optical signal, and voltage signal output is converted optical signal into, first and second amplifier will
The voltage signal for receiving is exported after being amplified, and signal is carried out A/D conversions by first and second A/D sampling modules, and output is stored up
It is stored in first and second SRAM module, for further calling；3rd photoelectric detector be used for detect Brillouin scattering optical signal, and
Voltage signal output is converted optical signal into, the voltage signal that the 3rd amplifier will be received is exported after being amplified, the 3rd A/D
Signal is carried out A/D conversions and output feeding comparison module by sampling module, and comparison module is used to compare output voltage values with setting
The magnitude relationship of value, if output voltage values are more than setting value, starts alarm.
In above-mentioned multi-functional cable, three core power cables include that wire, filler, optical fiber place groove.
In above-mentioned multi-functional cable, wire includes：Core, internal shield, megohmite insulant, external shielding layer, protective case
And metal screen layer；Core selects copper cash or aluminum steel, internal shield to be made up of semi-conducting material, core surface is surrounded on, with line
Core equipotential, prevents from producing shelf depreciation between core and megohmite insulant, and megohmite insulant uses crosslinked polyethylene, is surrounded on core
Outside internal shield, external shielding layer is made up of semi-conducting material, is surrounded on megohmite insulant surface, prevents megohmite insulant with protection
Shelf depreciation is produced between set, metal screen layer is surrounded on outside protective case, will leak out electric current and access grounded screen；Filler is selected
Use non-woven fabrics；Optical fiber places groove and is provided with 3, and is installed on inside three core power cables, is mutually 120 degree of insertion fillers
In.
In above-mentioned multi-functional cable, the first optical fiber, the second optical fiber, the 3rd optical fiber are respectively placed in 3 optical fiber and place
Trench interiors.
In above-mentioned multi-functional cable, the 3rd optical fiber is telecommunication optical fiber, for power communication, automation transmission.
Beneficial effects of the present invention：Realize temperature measuring, stress detection and the general communication of three core power cable each points
Function, external interference is eliminated using built-in fiber, while improving the service life of optical fiber.For power cable fault detection,
The aspects such as current-carrying capacity control, burglar alarm, power communication provide the foundation realized.
Brief description of the drawings
Fig. 1 is the external structure schematic diagram of one embodiment of the invention；
Fig. 2 is the sectional view of one embodiment of the invention；
Fig. 3 is the internal structure schematic diagram of one embodiment of the invention；
Wherein, the core power cables of 1- tri-, the optical fiber of 2- first, the optical fiber of 3- second, the optical fiber of 4- the 3rd, 5- photoelectric conversion devices, 6- light
Module, 7- electricity modules, 8- wires, 9- fillers, 10- optical fiber places groove, 81- cores, 82- internal shields, 83- insulants
Matter, 84- external shielding layers, 85- protective cases, 86- metal screen layers.
Specific embodiment
Embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.
The example of the embodiment is shown in the drawings, wherein same or similar label represents identical or class from start to finish
As element or the element with same or like function.Below with reference to Description of Drawings embodiment be it is exemplary, only
For explaining the present invention, and it is not construed as limiting the claims.
Following disclosure provides many different embodiments or example is used for realizing different structure of the invention.For letter
Change disclosure of the invention, hereinafter the part and setting to specific examples are described.They are only merely illustrative, and purpose is not
It is to limit the present invention.Additionally, the present invention can in different examples repeat reference numerals and/or letter.This repetition be for
Simplify and clearly purpose, the relation between discussed various embodiments and/or setting itself is not indicated.Additionally, this hair
It is bright there is provided various specific techniques and the example of material, but those of ordinary skill in the art can be appreciated that other techniques
The use of applicability and/or other materials.In addition, fisrt feature described below second feature it " on " structure can be with
Be formed as the embodiment of directly contact including the first and second features, it is also possible to be formed in first and second including other feature
Embodiment between feature, such first and second feature may not be directly contact.
, it is necessary to explanation in description of the invention, unless otherwise prescribed and limit, term " connected " " connection " should do extensively
Reason and good sense solution, can be joined directly together for example, it may be mechanically connecting or electrical connection, or two connections of element internal,
Can also be indirectly connected to by intermediary, for those of ordinary skill in the related art, can managed as the case may be
Solve the concrete meaning of above-mentioned term.
The present embodiment is adopted the following technical scheme that：A kind of multi-functional cable, including three core power cables, also including the first light
Fibre, the second optical fiber, the 3rd optical fiber and photoelectric conversion device；First optical fiber, the second optical fiber, the 3rd fiber placing are in three core electric power electricity
Inside cable, photoelectric conversion device is connected with first, second optical fiber.
Further, photoelectric conversion device includes optical module and electric module, and optical module is connected with the first optical fiber, the second optical fiber,
For launching optical signal and receiving the scattered light signal of setting, electric module is connected with optical module, for scattered light signal to be converted
For electric signal and realize storage with alarm；Photoelectric conversion device is installed on the initial segment of three core power cables.
Further, optical module includes the laser being sequentially connected, the first light connected on photo-coupler, and photo-coupler
Wave filter, the second optical filter；First optical filter is connected with the first optical fiber, the second optical fiber, the second optical filter and electric module
Connection；Laser launches pulsed light, and photo-coupler realizes branch and the combining of light, first and second optical filter selection respective settings
The incident light and scattering light of wavelength.
Further, first and second optical filter is set using Raman scattering with Brillouin scattering, for filtering out Stokes
Scattered light signal, anti-Stokes scattering optical signal and Brillouin scattering optical signal.
Further, electric module includes：First photoelectric detector be sequentially connected the first amplifier, an A/D sampling modules and
First SRAM module, the second photoelectric detector is sequentially connected the second amplifier, the 2nd A/D sampling modules and the second SRAM module,
3rd photoelectric detector is sequentially connected the 3rd amplifier, the 3rd A/D sampling modules, comparison module and alarm；First, second and third
Photoelectric detector is connected with the second optical filter；First, second photoelectric detector be used for detect Stokes ratio signal and
Anti-Stokes scattering optical signal, and convert optical signal into voltage signal output, the voltage that first and second amplifier will be received
Signal is exported after being amplified, and signal is carried out A/D conversions by first and second A/D sampling modules, and output is stored in into first and second
In SRAM module, for further calling；3rd photoelectric detector is used to detect Brillouin scattering optical signal, and optical signal is converted
For voltage signal is exported, the voltage signal that the 3rd amplifier will be received is exported after being amplified, and the 3rd A/D sampling modules will be believed
A/D conversions and output feeding comparison module number are carried out, comparison module is used to compare the magnitude relationship of output voltage values and setting value,
If output voltage values are more than setting value, start alarm.
Further, three core power cables include that wire, filler, optical fiber place groove.
Further, wire includes：Core, internal shield, megohmite insulant, external shielding layer, protective case and metal screen layer；Line
Core selects copper cash or aluminum steel, internal shield to be made up of semi-conducting material, is surrounded on core surface, with core equipotential, prevents line
Shelf depreciation is produced between core and megohmite insulant, megohmite insulant uses crosslinked polyethylene, is surrounded on outside core and internal shield,
External shielding layer is made up of semi-conducting material, is surrounded on megohmite insulant surface, prevents from producing part between megohmite insulant and protective case
Electric discharge, metal screen layer is surrounded on outside protective case, be will leak out electric current and is accessed grounded screen；Filler selects non-woven fabrics；Optical fiber
Place groove and be provided with 3, and be installed on inside three core power cables, be mutually in 120 degree of insertion fillers.
Further, the first optical fiber, the second optical fiber, the 3rd optical fiber are respectively placed in 3 optical fiber and place trench interiors.
Further, the 3rd optical fiber is telecommunication optical fiber, for power communication, automation transmission.
The present embodiment is elaborated below, as shown in figure 1, a kind of multi-functional cable, including three core power cables 1,
First optical fiber 2, the second optical fiber 3, the 3rd optical fiber 4, photoelectric conversion device 5.
And, the first optical fiber 2, the second optical fiber 3, the 3rd optical fiber 4 are placed in inside three described core power cables 1, are mutually
120 degree.
And, three core power cables 1 include that wire 8, filler 9, optical fiber place groove 10；
And, wire 8 includes core 81, internal shield 82, megohmite insulant 83, external shielding layer 84, metal screen layer 85, filler
Matter 86.The material of core 81 is copper.Megohmite insulant 83 is crosslinked polyethylene.Filler 86 is non-woven fabrics.
And, photoelectric conversion device 5 is installed on the initial segment of three core power cable 1, including optical module 6 and electric module 7.
And, optical module 6 includes：Laser, photo-coupler, first, second optical filter.Laser can produce incidence
Light.
And, first, second optical filter uses Raman scattering and is set with Brillouin scattering, can filter out stoke
This scattered light signal, anti-Stokes scattering optical signal and Brillouin scattering optical signal.
And, electric module 7 includes first, second, third photoelectric detector, first, second, third amplifier, first, the
2nd, the 3rd A/D sampling modules, first, second SRAM module, comparison module and alarm.First, second photoelectric detector can be examined
Stokes ratio signal and anti-Stokes scattering optical signal are surveyed, and converts optical signal into electric signal.3rd smooth electric-examination
The detectable Brillouin scattering optical signal of device is surveyed, and converts optical signal into electric signal.
And, electric module 7 includes first, second SRAM module, can be stored the electric signal of collection.
And, electric module 7 includes comparison module, can compare the size of electric signal and setting value after conversion, and starts
Alarm.
And, the 3rd optical fiber is telecommunication optical fiber, can realize the communication functions such as power communication, automation transmission.
Specific embodiment is as follows, as shown in figure 1, the multi-functional cable of the present embodiment, including three core power cables 1,
One optical fiber 2, the second optical fiber 3, the 3rd optical fiber 4, photoelectric conversion device 5.Photoelectric conversion device 5 is installed on three core power cables 1
The initial segment, including：Optical module 6 and electric module 7, optical module 6 are connected with the first optical fiber 2, the second optical fiber 3, can launch optical signal
And the scattered light signal of setting is received, electric module 7 is connected with described optical module 6, scattered light signal can be converted into telecommunications
Number and realize storage with alarm.
As shown in Fig. 2 three core power cables 1 include that wire 8, filler 9, optical fiber place groove 10.Wire 8 includes：
Core 81, internal shield 82, megohmite insulant 83, external shielding layer 84, protective case 85, metal screen layer 86.The material of core 81 is copper
Line or aluminum steel, electric conductivity are good.The material of megohmite insulant 83 is crosslinked polyethylene, and insulating properties are good, are surrounded on described line
Outside core 81 and described internal shield 82.Internal shield 82 is made up of semi-conducting material, is surrounded on the surface of the core 81, with
The equipotential of the core 81, prevents that shelf depreciation occurs between the core 81 and the megohmite insulant 83.External shielding layer 84 by
Semi-conducting material is constituted, and is surrounded on the surface of the megohmite insulant 83, prevents from producing part between megohmite insulant 83 and protective case 85
Electric discharge.Metal screen layer 86 is surrounded on outside the protective case 85, can be will leak out electric current and be accessed grounded screen.The material of filler 9
It is non-woven fabrics.Optical fiber is placed groove 10 and is installed on inside three core power cables, and 3 optical fiber place groove into 120 degree of embedded fillings
In material 9.First optical fiber 2, the second optical fiber 3, the 3rd optical fiber 4 are respectively placed in 3 optical fiber and place inside groove 10.
As shown in figure 3, optical module 6 includes laser, photo-coupler, first, second optical filter.Laser can launch arteries and veins
Wash off, described photo-coupler can cross the branch and combining for realizing light.First, second optical filter can select respective settings ripple
Incident light and scattering light long.Electric module 7 includes：First, second, third photoelectric detector, first, second, third amplifier,
First, second, third A/D sampling modules, first, second SRAM module, comparison module, alarm.First, second Photoelectric Detection
Device is able to detect that Stokes ratio signal and anti-Stokes scattering optical signal, and the 3rd photoelectric detector is able to detect that
Brillouin scattering optical signal, first, second photoelectric detector and the 3rd photoelectric detector can convert optical signal into voltage letter
Number output, first, second, third amplifier electrically connects with first, second, third photoelectric detector, the voltage signal that will be received
Exported after being amplified, signal can be carried out A/D conversions by first, second, third A/D sampling modules, and by first, second A/
The output of D conversions is stored in first, second SRAM module, for further calling.The output feeding of the 3rd A/D conversions compares mould
Block, comparison module can compare the magnitude relationship of output voltage values and setting value, if output voltage values are more than setting value, can open
Dynamic alarm, reminds staff's cable to have stolen hidden danger.3rd optical fiber is telecommunication optical fiber.
The present embodiment when in use, realizes temperature measuring, stress detection and the general communication of three core power cable each points
Function, external interference is eliminated using built-in fiber, while improving the service life of optical fiber.Power cable fault is detected,
The aspects such as current-carrying capacity control, burglar alarm, power communication are provided and realize foundation.
It should be appreciated that the part that this specification is not elaborated belongs to prior art.
Although the specific embodiment of the invention above in association with Description of Drawings, those of ordinary skill in the art should
Understand, these are merely illustrative of, and various deformation or modification can be made to these implementation methods, without departing from original of the invention
Reason and essence.The scope of the present invention is only limited by the claims that follow.
Claims (9)
1. a kind of multi-functional cable, including three core power cables, it is characterised in that also including the first optical fiber, the second optical fiber, the 3rd
Optical fiber and photoelectric conversion device；First optical fiber, the second optical fiber, the 3rd fiber placing inside three core power cables, opto-electronic conversion
Device is connected with first, second optical fiber.
2. multi-functional cable as claimed in claim 1, it is characterised in that photoelectric conversion device includes optical module and electric module,
Optical module is connected with the first optical fiber, the second optical fiber, for launching optical signal and receiving the scattered light signal of setting, electric module and light
Module is connected, for scattered light signal being converted into electric signal and realizing storage with alarm；Photoelectric conversion device is installed on three cores
The initial segment of power cable.
3. multi-functional cable as claimed in claim 2, it is characterised in that optical module includes the laser, the optocoupler that are sequentially connected
The first optical filter, the second optical filter connected in clutch, and photo-coupler；First optical filter and the first optical fiber,
Two optical fiber are connected, and the second optical filter is connected with electric module；Laser launches pulsed light, and photo-coupler is realized the branch of light and closed
Road, the incident light and scattering light of first and second optical filter selection respective settings wavelength.
4. multi-functional cable as claimed in claim 3, it is characterised in that first and second optical filter uses Raman scattering and cloth
In deep pool scattering setting, for filtering out Stokes ratio signal, anti-Stokes scattering optical signal and Brillouin scattering
Signal.
5. multi-functional cable as claimed in claim 3, it is characterised in that electric module includes：First photoelectric detector connects successively
Connect the first amplifier, an A/D sampling modules and the first SRAM module, the second photoelectric detector be sequentially connected the second amplifier,
2nd A/D sampling modules and the second SRAM module, the 3rd photoelectric detector are sequentially connected the 3rd amplifier, the 3rd A/D sampling moulds
Block, comparison module and alarm；First, second and third photoelectric detector is connected with the second optical filter；First, second Photoelectric Detection
Device is used to detect Stokes ratio signal and anti-Stokes scattering optical signal, and it is defeated to convert optical signal into voltage signal
Go out, the voltage signal that first and second amplifier will be received is exported after being amplified, and first and second A/D sampling modules carry out signal
A/D is changed, and output is stored in first and second SRAM module, for further calling；3rd photoelectric detector is used to detect cloth
In deep scattered light signal, and convert optical signal into voltage signal output, the voltage signal that the 3rd amplifier will be received is carried out
After amplification export, the 3rd A/D sampling modules by signal carry out A/D conversions and output feeding comparison module, comparison module be used for than
Compared with output voltage values and the magnitude relationship of setting value, if output voltage values are more than setting value, start alarm.
6. multi-functional cable as claimed in claim 2, it is characterised in that three core power cables include wire, filler, light
Fibre places groove.
7. multi-functional cable as claimed in claim 6, it is characterised in that wire includes：Core, internal shield, megohmite insulant,
External shielding layer, protective case and metal screen layer；Core selects copper cash or aluminum steel, internal shield to be made up of semi-conducting material, surround
In core surface, with core equipotential, prevent from producing shelf depreciation between core and megohmite insulant, megohmite insulant is poly- using crosslinking
Ethene, is surrounded on outside core and internal shield, and external shielding layer is made up of semi-conducting material, is surrounded on megohmite insulant surface, is prevented
Shelf depreciation is only produced between megohmite insulant and protective case, metal screen layer is surrounded on outside protective case, will leak out electric current access
Grounded screen；Filler selects non-woven fabrics；Optical fiber places groove and is provided with 3, and is installed on inside three core power cables, is mutually
In 120 degree of embedded fillers.
8. multi-functional cable as claimed in claim 7, it is characterised in that the first optical fiber, the second optical fiber, the 3rd optical fiber are put respectively
It is placed in 3 optical fiber and places trench interiors.
9. multi-functional cable as claimed in claim 1, it is characterised in that the 3rd optical fiber is telecommunication optical fiber, for power communication,
Automation transmission.
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|---|---|---|---|
| CN201611236025.7A CN106710703A (en) | 2016-12-28 | 2016-12-28 | Multifunctional cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611236025.7A CN106710703A (en) | 2016-12-28 | 2016-12-28 | Multifunctional cable |
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| CN106710703A true CN106710703A (en) | 2017-05-24 |
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| CN201611236025.7A Pending CN106710703A (en) | 2016-12-28 | 2016-12-28 | Multifunctional cable |
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| US20110120750A1 (en) * | 2008-07-08 | 2011-05-26 | Bae Systems Plc | Electrical circuit assemblies and structural components incorporating same |
| CN103424140A (en) * | 2012-05-10 | 2013-12-04 | 国家电网公司 | Carbon fiber photoelectric composite lead wire online monitoring system |
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